Table 2. Assignment of the Arctic metagenomic reads to individual chromosomes of B. prasinos Ban7 and associated statistics.

Ref names	Ref length (bp)	# Reads	Alignment (%)	Depth cover	% ID	% GC
chrom_01	1 352 724	155 626	97.6	10.7	92.9	49.3
chrom_02	1 122 692	127 118	97.2	10.5	92.8	49
chrom_03	1 091 008	123 431	96.3	10.6	92.9	49.2
chrom_04	1 037 991	122 919	97	11	92.5	48.5
chrom_05	1 019 276	114 827	96.5	10.5	92.8	48.9
chrom_06	989 707	110 283	96.2	10.4	92.8	48.8
chrom_07	955 652	108 599	96.3	10.6	92.9	48.9
chrom_08	937 610	104 766	95.7	10.4	92.9	49
chrom_09	895 536	101 602	96.7	10.6	92.9	49
chrom_10	794 368	86 786	95.1	10.2	92.8	48.9
chrom_11	741 603	108 169	96.5	13.1	93.2	48.7
chrom_12	712 459	79 697	96.3	10.4	92.8	48.9
chrom_13	708 035	83 561	96.8	11	92.6	49
chrom_14	663 424	59 280	96.5	8.4	93	43.6
chrom_15	519 835	58 731	96.6	10.5	92.8	48.8
chrom_16	494 108	53 034	93.2	9.9	92.8	48.7
chrom_17	465 570	46 946	91.3	9.3	92.7	48.4
chrom_18	310 170	32 728	95.4	9.6	92.6	47.7
chrom_19	146 238	3740	41.9	2.2	92.1	42.4
Mito	43 614	21 546	100	39.6	95.5	45.5
Chloro	72 700	40 406	69.2	45.8	96.6	46.3

Reference names (Ref Names) lists the individual chromosomes (1 to 19), the mitochondria (Mito) and chloroplast (Chloro). Reference length (Ref Length) is the length of the reference sequences for the chromosomes in base pair (bp). Number of reads (# Reads) mapped to the reference sequence. Alignment is the percentage of the chromosome length with aligned reads. Depth of coverage (Depth Cover) is average number of reads aligning to a given position of the reference chromosome. Percent identity (% ID) is average pairwise identity over the alignment and the percent GC (%GC) is GC content of mapped Arctic reads.